Sound Energy Quiz (p.260-263)

What is sound energy?

• A type of electrical energy

• Energy that travels through vibrations

• Energy from the sun

• Energy stored in batteries

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How does sound travel through different materials?

• It travels the same in all materials

• It travels fastest through solids

• It travels fastest through gases

• It cannot travel through any materials

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What does the term 'frequency' refer to?

• The speed of sound

• The loudness of a sound

• The number of vibrations per second

• The distance sound travels

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What happens to sound waves when they have a high frequency?

• They are softer

• They have a low pitch

• They have a high pitch

• They do not travel

Which dog has a higher pitch bark?

• The dog that barks at 200 Hz

• The dog that barks at 600 Hz

• Both dogs have the same pitch

• Neither dog barks

What is a 'vibration'?

• A type of sound wave

• A wave that carries energy through the air

• The back-and-forth motion of an object

• All of the above

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Why can sound not travel in a vacuum?

• There are no vibrations

• It needs a medium like air or water to travel

• Sound is too weak

• Sound can travel anywhere

When you listen to music, what do sound waves represent?

• The color of the music

• The vibrations of the instruments

• The lyrics of the song

• The rhythm only

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What instrument is mentioned that produces sound through vibrations?

• A piano

• A guitar

• A trumpet

• A drum

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How does the temperature of a material affect sound?

• It makes sound travel slower

• It has no effect on sound

• It affects the speed of sound, making it travel faster in warmer materials

• It only affects the loudness of sound

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